Generally, finished areas have walls, a floor and a ceiling. Often, while renovating, only the walls and floors are treated while the ceilings are ignored. This is a common oversight because it is often thought that the only options available are to either completely replace the ceiling tiles and gridwork or else remove the tiles clean the gridwork and vents then replace the ceiling tiles with new.
However acoustic ceiling restoration is a cost-effective alternative to new tile replacement which ensures a uniform new look appearance. It is provided by RK Coatings who are specialist spray coating contractors by the application of a pigmented (any colour) acoustical coating, specifically engineered for this purpose. 
The ceiling is the largest light reflecting surface in most areas. The darker the ceiling … the less the light is disbursed. Therefore, maintaining a warm and well-lighted environment can be directly related to the condition of the ceiling.

New Tile Replacement and Disposal of Old Materials…
…is expensive, numerous contractors being required i.e. ceiling contractors, electricians, fire alarm engineers, c.c.t.v engineers etc.
…is very time-consuming, the removal, disposal of the old ceiling and the replacement with the new all takes time. The area will need to be shut down or else the work will have to be undertaken overnights. Either way there will be major costs and disruption for the client’s business.
…will create a lot of dirt and disruption.
…adds to landfills, which is not an environmentally friendly option.
…does not address the old stained grids, air-diffusers, or speaker plates.

Conventional Painting
Roller application results in a “painted” look – the grids and tiles merge into one.
It leaves all the tiles stuck to the gridwork therefore access to services above the ceiling is no longer available without breaking the tiles away from the grids.
It creates a hard surface which results in a major loss of acoustical value.
It may also compromise the ceiling’s fire rating.

Chemical Cleaning
Cannot overcome colour inconsistencies. 
While cleaning will lighten the ceiling, more discoloured areas (around air diffusers) may still remain darker. The ceiling is simply lightened proportionately.
May create a “draughtboard” effect.
Will generally only last one to three years and then the ceiling problem will need to be addressed again.
Given the above, what are architects and specifiers to do? 
Those who are familiar with state-of-the-art technology are adopting acoustical ceiling restoration an integral part of the restoration program.

​CBC 110 CeilBlock acoustic ceiling coating - the ultimate mineral fibre acoustic suspended ceiling restoration coating. Designed to be spray applied with the ceiling tiles and grid in situ. 
CBC110-CeilBlock is water based and non-bridging it will not stick the tiles together or to the grid system. Acoustic properties are maintained and the non-yellowing formula will last as long as a brand new suspended ceiling. 
CBC110-CeilBlock will replicate the existing textures or pattern of the acoustic ceiling tiles and gives a uniform even appearance across the whole suspended ceiling. Air vents, loudspeakers and sprinkler bases can also be coated.
CBC110-CeilBlock is water based, low odour and available in any RAL or BS4800 colour.
CBC110-CeilBlock is applied by our highly trained operatives using an airless spray process.

​Next, insist on independent laboratory test results that verify advertised product performance claims. Appropriate tests must have been conducted in such areas as acoustical effects, fire retardancy, light reflectance, toxicity, and aging.
Finally, legitimate product manufacturers can provide standard project specifications. This will ensure that when competitive bids are solicited and that all contractors are responding to the same criteria. 
Apart from product quality, poor application techniques can result in an unpleasant experience. Particularly in occupied areas, spraying a pigmented coating must be done while protecting furnishings, fixtures, floors, and walls from dust. Therefore, it is essential that the spray coating contractor has a solid track record of using the specified products in fully occupied space. They should be able to provide satisfied client references.

CeilBlock CBC110 acoustic ceiling coating product to be supplied and applied by RK Coatings (info@rkcoatings.com) who are to allow for cleaning down, preparing and spray painting the existing acoustic ceiling including all in situ tiles, gridwork, speakers and sprinkler bases with 2 coats of CeilBlock CBC110 acoustic ceiling coating, colour to be...

​The average cost for new acoustic ceiling tile installation is €25 per square metre. In contrast the average application cost for acoustic ceiling restoration is approximately 35% of these costs, including treatment to the tiles, sprinkler bases, speakers and gridwork. Air diffuser vents can either be sprayed the same colour as the ceiling or masked and left as existing.
It should also be pointed out that the average cost sited above is related to standard 1200 x 600 or 600 x 600 flat fissured tiles. Consider the financial benefits of restoring more expensive tiles? It is not uncommon to pay €20.00 or more per square metre just for the tiles alone! The savings therefore can truly be significant.
Another benefit is related to the time required to complete the project. Ceiling restoration typically takes one-third of the time as compared to replacement with new tiles.